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Conceptis SumSudoku Screenshot 1
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About Conceptis SumSudoku

SumSudoku, also known as Killer Sudoku, are addictive logic puzzles best described as a cross between Sudoku and Kakuro. Using pure logic and simple add/subtract calculations, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

Each puzzle consists of a 9x9 Sudoku grid containing areas surrounded by dark borders. The object is to fill all empty squares so that the numbers 1 to 9 appear exactly once in each row, column and 3x3 box, and the sum of the numbers in each area is equal to the clue in the area's top-left corner. In addition, no number may be used in the same area more than once.

The game includes helpful features such as showing possible sum number combinations in an area and pencilmarks to make temporary placement of numbers in the grid.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Conceptis SumSudoku includes a Weekly Bonus section providing an extra free puzzle each week.

PUZZLE FEATURES

• 90 free SumSudoku puzzle samples
• Extra bonus puzzle published free each week
• Multiple difficulty levels from easy to very hard
• Puzzle library continuously updates with new content
• Manually selected, top quality puzzles
• Unique solution for each puzzle
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills

GAMING FEATURES

• Concurrently playing and saving multiple puzzles
• Puzzle library sorting and hiding options
• Portrait and landscape screen support (tablet only)
• Graphic previews showing puzzles progress as they are being solved
• Pencilmarks feature for solving hard puzzles
• Autofill pencilmarks mode
• Show possible sum combinations option
• Lock number on keypad option
• Highlight Excluded Squares option
• Unlimited Undo and Redo
• Show conflicts during gameplay
• Check puzzle
• Track puzzle solving times
• Backup & restore puzzle progress to Google Drive

ABOUT

Conceptis SumSudoku have also become popular under other names such as Killer Sudoku, Sumdoku and Sumoku. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

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Frequently Asked Questions(FAQ)

What is SumSudoku?

SumSudoku is a logic puzzle that combines features of Sudoku and Kakuro. The goal is to fill a 9x9 grid with numbers 1 to 9 so that each row, column, and 3x3 box contains each number exactly once and the sum of the numbers in each area surrounded by dark borders is equal to the clue in the area's top-left corner.

What are the features of Conceptis SumSudoku?

Conceptis SumSudoku offers 90 free puzzle samples, a weekly bonus puzzle, multiple difficulty levels, and continuously updates with new content. The puzzles are manually selected for top quality and have a unique solution. The game includes helpful features such as pencilmarks, show possible sum combinations, and graphic previews showing puzzle progress. Additional features include sorting and hiding options, portrait and landscape screen support (tablet only), lock number on keypad option, unlimited undo and redo, and backup and restore puzzle progress to Google Drive.

Who produces Conceptis SumSudoku?

All puzzles in Conceptis SumSudoku are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media worldwide. On average, over 20 million Conceptis puzzles are solved each day in newspapers, magazines, books, online, and on smartphones and tablets globally.

What are the benefits of playing Conceptis SumSudoku?

Conceptis SumSudoku provides hours of intellectual challenge and fun while sharpening logic and improving cognitive skills. It is suitable for puzzle fans of all skills and ages.
author
I'm hooked
Pauline Saarman
author
Best sum sudoku app I've tried so far.
Tanner Morrow
author
Challenging brains
Hans Blok
author
excellent soduko very challenging but worthwhile.
jimmy brown
author
Fun game ... still in the freebies. The easy and the medium are fun. The hard is very challenging.
Vernon Smith
author
Classic!
Tyrone Dewey